Problem 3: Amass is sliding on a frictionless surface with a speed v. It runs into a linearspring with a spring constant of k, which compresses from position x; to position xp.m©theexpertta.comWrite a general expression for the force that the spring exerts on the mass, in term of k and x. Choose the initial position of the front of thespring to be x=0.Fspring =-kx/ Correct!Part (b) Select the equation that correctly describes the work done by the spring to stop the mass.Ow=-kx?OW=- *fk x dx + , m vOW=-kx dxOw= f *f k x dxOW= - *k x dx - , m v?OW = - * F x dxSubmitHintFeedbackI give up!Hints: 0% deduction per hint. Hints remaining: 2Feedback: 0% deduction per feedback.Part (c) Evaluate the relationship in part (b) to arrive at an expression for the work done in terms of known variables.Part (d) Solve for the numerical value of the work done in Joules given that x; = 0, x = 68 cm, and k= 145 N/m.W = - 33.5W = -33.5/ Correct!

Initial position of the front of the spring is xi = 0 Spring force, Fx = - kx For numerical, xi = 0,…

Answered: Problem 3: Amass is sliding on a…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 68PQ

See similar textbooks

Similar questions

Pls answer asap. Thank you Note: Computation must be complete and answer in 2 decimal places.
Stacked blocks and pulley Mass Ma lies on top of mass Mb, as shown. Assume Mb > Ma. The two blocks are pulled from rest by a massless rope passing over a pulley. The pulley is accelerated at rate A. Block Mb slides on the table without friction, but there is a constant friction force f between Ma and Mb due to their relative motion. Find the tension in the rope.
Starting from rest, an elevator weighing 9000 Newtons attains an upward velocity of 5 m/s in 4 seconds with uniform acceleration. a. Compute for the uniform acceleration. b. Compute the apparent weight of a man weighing 600 Newtons standing inside the elevator during the accent. c. Compute the tension in the supporting cable of the elevator.
A block with a mass (m) of 74.7 kg slides along a horzontal surface. the coefficent of kinetic friction is .31. THe block has an ititial speed (v0) at 11.6m/s in the positive direction. 1) write and expression for the x component of the frictional force of the block experiences Ff in terms of the given variables and variables avaible. 2) what is the magnitude of the frictional force? 3) how for will the block travel before coming to rest.
on is 11. A string can hold up 12 kg without breaking. You tie the string to a 30 kg object sitting on ice and use it to pull the object horizontally for 22 m. Calculate the minimum possible time to complete the task. T
A 2kg block starts from rest at the top of a 30 degree incline and slides a distance of 2m down the incline in 1.3s. (There is friction in this problem). 1. find the magnitude of the acceleration of the block. 2. What is the frictional force and its direction acting on the block? 3. Find the speed of the block after it has slid 2m.
A particle of mass m traveling horizontally with initial speed v0 encounters a dissipative force f (v) = cv2, where c is a constant. a.Provide the equation of motion of the particle with an appropriate initial condition. b. Find the speed of the particle v(t). c. Find its acceleration a(t). d. What is its distance traveled x(t)?
You are pulling a string with a force of 205N attatched to a heavy box of 38kg across your carpeted floor. The coeffiecnt of kinetic friction between the objects and your floor is 0.32. The string attatched to the object makes and angle of 35 degrees with respect to the horizontial ground. With what acceleration is the box attatched to the string. A.) 3.09m/s b.) 1.37m/s c.) 2.27 m/s d.) 4.42 m/s E. 6.71 m/s
A 65.0-kg file cabinet is sliding down a rough ramp for a distance of 5.00 m from rest as shown. The friction force on the box is 75.0 N. What is the final kinetic energy of the cabinet at the end of the ramp, in Joules? Use g = 10.0 m/s². Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. 5.0 m 15.0⁰
For this problem, m=10 Kg. Please answer the following: A) What is the accelèration in the x direction? B.What is the normal force? B) If the total length of the incline is 40 m and the block was initially at rest. What is the height (h) after 3 seconds? C) What was the initial height H (when the block is at the very top) ?
1. Apply Newton's second law to find the formula for the acceleration of the system. Ignore friction and the masses of the pulley and cord. Express your answer in terms of the variables mAmB, and appropriate constants. 2. Apply Newton's second law to find the formula for the tension in the cord. Ignore friction and the masses of the pulley and cord.
A block with mass m = 5 kg is pushed with a force of = 30 N. Please answer F1 the following: A. Draw a body diagram ( like I did in lecture) representing all forces acting on the block. B. If the coefficient of static friction is = 0.5, does the block move? ( μscompare with )FsF1 C. The block starts moving, if the coefficient of static friction is =0.2 find .μkFk D. Find the acceleration. E. After t = 2 s how far did the block move? (the initial position and initial Xi velocity are both zero)Vi F. What is the velocity after t = 3 s ?

SEE MORE QUESTIONS

Recommended textbooks for you

Physics for Scientists and Engineers: Foundations…

Physics

ISBN:

9781133939146

Author:

Katz, Debora M.

Publisher:

Cengage Learning